Question

A tank 30m long,20 m broad and 12m deep is dug in a field 500m long and 30 m wide. How much will level of field rise if earth dug out of tank is evenly spread over the field

Answer 1

7200/15000 is 0.48 m so height is 0.48 m

Answer 2

1)area of tank =l*b*h
=30*20*12
=72,00m²

2)area of field =l*b
=50*30=1500m²

the level of field rise= area of tank
__________
area of field

=7200
_____ =4.8sq.m
1500